Bonkrokz,

The in-tank fuel assembly is totally different on the Sedans then the Coupe, and Z.

I purchased an AAM fuel return kit (basic), and had to modify it to fit/work on the Sedan. (AAM said it was plug and play)

I hope this helps,

Ian

 

Complete matter of opinion.
A vast majority of the members on this forum would tend to disagree.

 

^I would.

 

wow this thread went way out there, lol

 

thanks ..so would you recomend this kit ?

 

I hope your not serious? Rays are heavier then the 17's. The only advantage the 19's have VS the stock 17s is they are wider and you'd get better tracking(not like we can get great traction on stocks anyhow lol)

 

17" stockers are cast aluminum much heavier than forged... I know the OEM 18s are lighter and my 19" CE28 are MUCH lighter than OEM 17s... I don’t know anything about OEM 19s, but it wouldnt surprise me of they are lighter too... the 17s are heavy.

 

From my experience I lost topend speed when I installed mine. Has more of a delay and Im MT.

And I shoudl rephrase me previous post... Im talkin about rims and tire...not just rim vs rim. sorry

 

sorry - but tire is lighter too... the sidewall mass of the 55 series on the 17s actually weigh more than the lower profile of 19s... believe it or not the 19s with 245/40/19 I'm running are lighter overall than my OEM 225/55/17

It is what it is.

BTW - how did you determine you "lost top speed"?... and "more of a delay"?...

 

I'm not quite sure where you're getting your information regarding tire weight, but a quick check of tire weights on TireRack shows that, on average, 215/55R17 tires are generally 2 to 4 lbs lighter (24-26lbs) than a 245/40/19 (27-30lbs). The OEM 17s weigh in the 24-25lb range and the coupe 19s are very close to that (within a pound). I'm not surprised your aftermarket 19s are lighter (probably close to 20lbs), but the tires make up the loss when compared to the 17" OEM setup.

Then there's two other major factors at play:

1) With larger rims, the mass of wheel/tire is further from the hub which makes it harder to accelerate.

2) Wider rims/tires and sticky tires greatly increase drag and wind resistance. A 245/40/19 is over 1.5" wider in profile. That's a big increase in drag.

My aftermarket 18" combo weighs 1lb less overall than my OEM 17s. The width of the 18" combo is 1.2" wider than the 17s. Overall, when I swap rims, my MPGs drop a solid 1-2mpg. That means the car is using my fuel/power to overcome the drag.

 

^^^ look up the weight of Toyo T1R 245/40/19

 

26lbs. So it's about the same or slightly heavier than a typical OEM 215/55R17.

 

I am serious. I have swapped the oem 17's numerous times and the oem 19s a great amount of times as well to know the difference.

As OCG35 stated, the oem 17's are cast iron and the 19" coupe 19's are forged. Larger rims does not always equate to heavier rims. You have to consider how much material is being used in addition to the type of material.

 

Cast iron for the 17s You mean pressure cast aluminum. The 19s are forged aluminum and forged doesn't always mean lighter. It simply means it's stronger. People have put the OEM 19s on the scales and the difference between 17s and 19s is hardly significant. I think Jeff92SE is one of the few that actually owns both sets and has weighed them.

The fact is, a G with the coupe 19s is going to be fractionally slower in acceleration because of the added moment of inertia weight and the drag from the wider rims/tires. In terms of braking, handling, and looks? Coupe 19s win by about 1000%.

 

The T1R is pretty light for a 19" tire. (I'm not that all enthused about their performance but anyhoo).

The cast 17" 17" wheel is NOT heavy. At least the premium wheels aren't. Just because a wheel is cast, doesn't mean it's heavy. It's very, very difficult to make a 19" wheel match the weight of a 17" wheel. The rear forged 19s are about 21lbs each. A rear 19 with a Michelin pilot sport (light for it's size) 255-35-19 comes in at about 45 lbs.

If I remember right, my blizzak and oem 17 weighed in at about 45lbs or so. The blizzak is 25 lbs so that puts the oem 17 at about 20lbs. I'll weigh them again when I swap.

Now the oem 18s are pretty heavy (Z and coupe). About 6 lbs each heavier than the Z track forged 18. 19lbs vs 25 lbs